I felt a similar sense of sad loss at the death of James Hillman, "psychologist of the soul". Wonderful man. These people who touch our lives, even though we have never met nor spoken one word with them, though a sense of connection has developed, because we find meaning in their lives and work, and the loss feels personal. As Robin Williams' death also felt like a deeply personal loss.
Someone last night said to me "the whole world love Robin Williams, so why didn't he love himself enough to stay alive?" That is not a simple question. The simplistic default of "depression" seems to me just to be a superficial default answer to close down the dialogue. Maybe Robin looked at the world in a much wider way at the end and maybe he felt that it just wasn't the kind of world he wanted to live in anymore - "never a world for men, no place to breathe human air". Very occasionally (perhaps more lately) I wonder if I will make the same choice one day, that choice to go, because things progress to a point where I feel that I can't breathe here anymore, my soul won't be willing to tolerate any more of the daily millions of incidents of brutality that dehumanise us all in some way. But I am here now and Robin's death made me realise I have to live more self-protectively. His last gift to me. And we never met, not even for a second; but he is an important presence in my life all the same.
I felt a similar sense of loss in 2005 at the death of Scott Peck. His book "People of the Lie" was outstanding in its insight and wisdom, so far from the mainstream psychiatry in which he was trained (but far surpassed).
One small but significant life message from his legacy:
"Until you value yourself, you won't value your time. Until you value your time, you will not do anything with it.
Share our similarities, celebrate our differences."
It is only because of problems that we grow mentally and spiritually.